token bus


Also found in: Acronyms.

token bus

(networking)
(IEEE 802.4) A networking protocol which mediates access to a bus topology network as though it were a token ring. This eliminates the collisions found in carrier sense collision detect protocols. Nodes can be configured to pass the token in any order, not necessarily related to their physical ordering on the bus. The token is sent from one node to its successor in the logical ring by broadcast on the bus and is ignored by the other nodes.
References in periodicals archive ?
Bridges do their connecting at the Data Link Layer (layer 2) and are capable of linking similar and dissimilar LANs such as Ethernet (baseband or broadband) to token-ring LANs and token bus LANs to token-ring LANs [20].
The token bus uses a special packet called a token to provide access to the network.
Token bus protocol seems to be less popular for voice data integration compared to the token ring, probably because of its large token-passing overhead.
It is possible to make use of the broadcast mechanism in token bus systems to distribute readily the up-to-date information about the state of individual stations to the entire system.
Logically the token bus and token ring protocol are identical.